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2 H L L E Z A L C H OOMPRESSION ROLL FOR SLASHER DRBSSERS FOR COTTONWARPS.

Patented May 25, 1886.

' (N0 Modem 2Sheets-Sheet H. O. LAZELLE.

COMPRESSION ROLL FOR SLASHER DRESSERS FOR OOTTON WARPS.

No. 342,613. Patented May 25, 1886.

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UNITED STATES PATENT Trice.

HENRY G. LAZELLE, OF VVOONSOOKET, RHODE ISLAND.

COMPRESSION-ROLL FOR SLASHER-DRESSERS FOR COTTON WARPS.

SPECIFICATION forming part of Letters Patent No.342,613, dated May 25,1886.

Application filed April 18, 1885.

To all whom it may concern:

Be it known that I, HENRY 0. LAZELLE, a citizen of the United States,residing at \Voonsocket, in the countyof Providence and State of RhodeIsland, have invented certain new and useful Improvements inCompression- Rolls for Slasher-Dressers for Cotton Warps and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to letters or figures of reference markedthereon, which form a part of this specification.

This invention relates to compression-rolls for slasher-dressers forcotton warps; and it consists in the novel construction and combinationof parts, as will be hereinafter fully described, and particularlypointed out in the claims.

In the drawings, Figure l is a partial detail perspective view of acompression roll embodying my improvements. Fig. 2 is a verticallongitudinal sectional view of Fig. 1 Fig. 3 is a vertical section online b b in Fig. 1. Fig. 4 is a vertical sectional view on line 00 x inFig. l with the key it retracted. Fig. 5 is a similar view with the keyIt projected. Fig. 6 is a rear end perspective view of part of amachine, showing my invention applied; and Fig. 7 is an end view of thecompressionroll and its means of support removed from the machine.

The ordinary compression-roll as now used is simply a hollow cylinder,ofeither wrought or cast iron, made smooth on the outside and of such alength as to nearly fill betweenthe heads of the loom-beam. WVhen theyarn upon the slasher is wound upon the beams, the roll, by othermechanism, is pressed firmly against it, causing it to revolve, andthereby press the yarn solid and uniform. Heretofore considerabletrouble has been experienced with these rolls, because of the variationsin the lengths of the loonrbeams between the heads requiring a number ofrolls of various lengths, and in most cases when no roll is at hand ofthe required length shorter ones are used, causing the warp on the endsof the beams not pressed by the roll to build up much faster, making itto take most of the Serial No.16-2,681. (N0 model.)

I strain when in the loom, causing the selvage ends to break,and thusmake poor selvages on cloth. I obviate this difficnlty by making oneroll answer for all variations and at all times to fill between thebeam-heads. To accomplish this I attach to the common roll anexpansion-joint of such a length that when the joint is closed it willbe shorterand when expanded longer than any beam used.

Referring by letter to the accompanying drawings, A designates thecommon roll, and

B O are thejaws or the clutch-sections, one of which, E, is secured tothe roll A by screws t i.

F designates the guide-bar,and e the spring for projecting the extension0, and also for permitting the retraction of the extension 0 whendesired, to lengthen or shorten the roll, as may be desired.

gh designate a springactuated key for locking the parts together. Thespring at is designed to hold the key in engagement with the guide-barF, as shown.

D designates a dust-sleeve within the jaws or clutch-sections B O,and isdesigned to close the openings between the engaging and interlockingbranches at a of the clutch-sections when the latter are drawn apart.

In operation the roll is placed upon weighted supports at the rear ofthemachine and nearly under the loom beam. The expansion joint or clutch BCis pressed in and looked, as shown in Figs. 2 and 5, the key h extendingbeyond the periphery of the roll. The weights of the support are thenreleased, which convey the roll between the heads of the beam until itmeets the yarn and immediately commences to revolve. The key it, comingin contact with the beam or yarn, is pressed in,which releases it fromthe catch or the bar F, causing the spring 6 to act, expanding the jointuntil the roll comes in contact with both heads of the beam and conformsto the distance between them at all times,thereby pressing upon the yarnthe entire length of the roll.

By referring to Figs. 6 and 7 of the drawings it will be seen that thecompression-roll A is placed upon the rollers 1*, which are journaled inthe frame H. Then the machine is put in motion, the warp-beam is rotatedby means of the friction-gear I, and after it has been turnedsnfficiently to hold the yarn the pawl L is then released from theratchet-wheel M, which allows the weight N to drop, thus causing theroll to rise up against the yarn on the beam and between the disks P,thereby causing the compression-roll to rotate on the rollers 1-. Bythis operation the catch-pin h comes in contact with the yarn. It ispressed in, unlocking the jaws,and causing the roll to engage the innersides of the heads or disks P.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent of the United States, is

1. The combination of the sections B G, the dust-sleeve D, guide-bar F,spring 0 on guide-bar F, and the spring-actuated key gh, substantiallyas specified.

2. The combination, withthe roll-bodyA HENRY C. LAZELLE.

Witnesses:

SAML. P. 000K, THEO. M. 000K.

